Improvement in rocking-chairs



UNITED STATES PATENT OFFICE.

WILLIAM E. BUSER, OF OHILLIOOTHE, OHIO.

IMPROVEMENT IN ROCKING-CHAIRS.

Specification forming part of Letters Patent No. 185,487, dated December19, 1876; application filed June 6, 1876.

To all whom it may concern Be it known that I, WILLIAM E. BUSER, ofOhillicothe, in the county of Ross and State of Ohio, have invented anew and useful Improvement in Rocking-Chairs; and I do hereby declarethat the following is a full, clear, and exact description of the same.

The invention is an improvement in that class of rockers in which thechair proper is mounted upon a pedestal or platform; and the improvementrelates particularly to the manner of connecting a coiled spring and ahinged bar, which are respectively attached to the platform andchair-seat, as hereinafter described.

In the accompanying drawing, forming part of this specification, Figure1 is a vertical section, and Fig. 2 a plan view, showing the means andmode of connecting the chair and platform.

A indicates a rocking-chair, and B the platform or pedestal upon whichitis supported. The weight of the back a of the chair causes it to tilt orincline the seat I) from a horizontal, which is for various reasonsobjectionable. To prevent this I employ a spring-bar, O, which isconnected to the front of the seatframe by means of pivoted link 0, andextends backward to connect with the square shaft or rod d, which isarranged horizontally in suitable beariu gs 0, attached to the platformB. A ribbon-spring, D, is coiled around the bar d between the hearingsor supports 0, and its ends are secured, respectively, to the bar d andthe platform I). The end of the bar 0 is provided with a square hole toreceive the end of the rod 01, so that the action of the spring iscommunicated directly to the bar 0. This pressure is designed tocounterbalance the weight of the back a, so that the seat will bemaintained in a horizontal position when the chair is unoccupied, butwithout perceptibly interfering with its freedom of movement as arocker. To increase the stress of the spring and tilt the chair fartherforward, the bar 0 is detached from rod or shaft 01, and a wrenchapplied to the other end of the same to wind up the spring. I alsoconnect the rocker to the platform by means of a threejointed bar, F.The bar is composed of a long and short piece, 0 d, the former, a, beinghinged to the rear bar of the chair-seat frame, and the latter, (1, tothe under side of the cross-bar of platform B. The bar F permits thechair proper to rock freely, but prevents it being tilted too farforward by the action of the spring, and also connects the chair to theplatform, so that the former cannot be lifted off or accidentallydisengaged from the latter.

To prevent any displacement of the chair on the platform, I apply blocksf to the inner side of the rockers proper, and set pins 9 g in theplatform, in such position as to project up between the blocks.

To provide for the oscillation of the chair the blocks f are placed alittle distance apart. The blocks are, preferably, elastic, so that themovement of the chair may not be too suddenly arrested by contact of thepins and blocks.

What I claim is- The combination, with the coiled spring and its shaftattached to the platform, of the bar 0, hinged to the chair-seat andconnected with the shaft, substantially as shown and described, wherebyit is adapted to be detached to permit adjustment of the tension of thespring B, as specified.

WILLIAM E. BUSER.

Witnesses:

J. I. THEooKMoRToN, H. M. WARE.

